Bristling Hydra 
Creature — Hydra
When this creature enters, you get 
(three energy counters).
Pay : Put a +1/+1 counter on this creature. It gains hexproof until end of turn.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL